The green flash is an optical event that can only occur at the moment of sunset or sunrise. As if that wasn’t specific enough, the phenomenon rarely takes place, as very precise conditions must be present.

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Also called a moon rainbow or a lunar rainbow, a moonbow is just what it sounds like, a rainbow created by moonlight instead of sunlight.

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Over 20,000 miles above the Earth’s surface, hundreds of satellites can be found orbiting our planet. Using transponders, they are able to send messages via radio frequencies, providing us with many of the modern comforts we enjoy today.

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While Earth is the planet everyone is most familiar with, there are currently well over five thousand known planets.

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